<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>引入样式表</title>
    <!--<link rel="stylesheet" href="a.css">-->
    <style type="text/css">
        @import "a.css";
    </style>
</head>
<body>
<!--
语法：@import url("common.css");写在css文件中或在内联style中
-->
<p class="web-style">映入样式表</p>
<a href="#">look</a>
</body>
</html>